What are potential timing problems for a 2008 hyundai sonata limited? on 2008 Hyundai Sonata

When is the timing belt supposed to defult on these things

Asked by for the 2008 Hyundai Sonata
I would never go longer than 90k, regardless of what the factory manual says. I have seen too many belts snap and ruin engines on cars where the factory instructions were too long.